Location History:
- Tokyo, JP (2004)
- Mito, JP (2008)
Company Filing History:
Years Active: 2004-2008
Title: Genta Koizumi: Innovator in Semiconductor Technology
Introduction
Genta Koizumi is a prominent inventor based in Mito, Japan. He has made significant contributions to the field of semiconductor technology, holding 2 patents that showcase his innovative approach to device fabrication and light-emitting technologies.
Latest Patents
One of his latest patents is a semiconductor device fabrication method. This method involves applying a diazo novolac photoresist to a semiconductor wafer, followed by light exposure of its entire surface to form an underlying resist layer. It further includes the formation of a surface resist layer, patterned-light exposure, and heat treatment to process the photoresist film into a resist pattern. The unique aspect of this method is that the surface resist layer is in an inverse tapered shape, while the underlying resist layer is in an undercut shape relative to the surface resist layer.
Another notable patent is for a light-emitting device and the process for producing the same. This invention features a monolithic array type light-emitting device that includes multiple light-emitting parts, making it particularly suitable as a light source for printers. Each light-emitting part consists of a light-emitting diode with a laminate structure, which includes an end-type GaAs substrate and several epitaxially grown layers, including n-type and p-type AlGaAs layers.
Career Highlights
Genta Koizumi is currently associated with Hitachi Cable, Inc., where he continues to develop innovative technologies in the semiconductor field. His work has significantly impacted the efficiency and effectiveness of light-emitting devices.
Collaborations
Throughout his career, Genta has collaborated with notable colleagues such as Masahiro Noguchi and Eiichi Kunitake. These collaborations have further enhanced his contributions to the field of semiconductor technology.
Conclusion
Genta Koizumi stands out as a key figure in semiconductor innovation, with his patents reflecting a deep understanding of both fabrication methods and light-emitting technologies. His work continues to influence advancements in the industry.